package com.rem.designPattern.facade外观;

/**
 * @author Rem
 * @date 2022-11-17
 */
public class TheaterLights {
    private static final TheaterLights LIGHTS = new TheaterLights();

    public static TheaterLights getInstance() {
        return LIGHTS;
    }

    public void on() {
        System.out.println("打开灯光...");
    }

    public void off() {
        System.out.println("关闭灯光...");
    }
}
